"""
存放命令, 新增命令
"""


class Fun1:
    def test(self):
        self.a = 1
        self.b = 2
        self.c = self.a + self.b
        return self.c


class Func(Fun1):
    def test(self):
        return super(Func, self).test()




a = Func().test()
print(a)